diff --git a/user_relationships.install b/user_relationships.install
index 1df32ec..c083643 100644
--- a/user_relationships.install
+++ b/user_relationships.install
@@ -216,8 +216,31 @@ function user_relationships_update_7006() {
 
     db_add_field('user_relationship_types', 'machine_name', $field);
 
+    // Set the machine name.
     db_update('user_relationship_types')
-      ->expression('machine_name', 'name')
+      ->expression('machine_name', 'rtid')
       ->execute();
+
+    // Update any old permissions.
+    drupal_static_reset('user_relationships_types_load');
+    $types = user_relationships_types_load();
+    foreach ($types as $type) {
+      $permissions = array(
+        // Old => new.
+        'can have ' . $type->name . ' relationships' => 'can have ' . $type->machine_name . ' relationships',
+        'maintain ' . $type->name . ' relationships' => 'maintain ' . $type->machine_name . ' relationships',
+        'can request ' . $type->name . ' relationships' => 'can request ' . $type->machine_name . ' relationships',
+        'delete ' . $type->name . ' relationships' => 'delete ' . $type->machine_name . ' relationships',
+      );
+
+      foreach ($permissions as $old => $new) {
+        db_update('role_permission')
+          ->fields(array(
+              'permission' => $new
+            ))
+          ->condition('permission', $old)
+          ->execute();
+      }
+    }
   }
 }